CN108081810A - A kind of multi-function chalk casing - Google Patents

Abstract

The invention relates to a multifunctional chalk cover for fixing chalk, which solves the problem of low chalk utilization rate and single function in the prior art. A multifunctional chalk cover includes a chalk cover shell, a sliding inner core, and a chalk set on the chalk The chalk wetting mechanism on the cover shell, the chalk wetting mechanism includes a water storage bag, a cover arranged on the water storage bag, and a water outlet pipe connected with the water storage bag. When the cover is opened, water can be injected into the water storage bag. When the water storage bag is pressed, water will come out from the outlet pipe to moisten the chalk. This invention can moisten the chalk tip, thereby avoiding the noise when it rubs against the blackboard, and the writing process will not produce flying chalk dust, and the chalk utilization rate is relatively high. High, can better fix the chalk, simple operation and strong practicability, the use of the card board can prevent the chalk cover from rolling and falling.

Description

A kind of multifunctional chalk set

technical field

The invention relates to a chalk case for fixing chalk, in particular to a multifunctional chalk case.

Background technique

Chalk is a commonly used tool in teaching, but the texture of chalk is relatively brittle, and it will break when bumped or dropped, and it will break even when forced during the writing process, and the sound produced by the friction between dry chalk and blackboard is extremely harsh , makes people uncomfortable, and there is also powder dust, but the chalk cover in the prior art has the problem of single function and low chalk utilization rate, such as the Chinese patent announcement number: CN 201525213 U, announced on July 14, 2010 A round chalk case, which includes a chalk case, is characterized in that: the chalk case is circular, the chalk case is placed in the chalk case, and one end of the chalk case has a seam, the structure is relatively simple, and the operation is convenient, but Chalk utilization rate is low, and function is single.

Contents of the invention

The invention mainly solves the problem of low chalk utilization rate and single function in the prior art, and provides a multifunctional chalk set with high chalk utilization rate.

The above-mentioned technical problems of the present invention are mainly solved by the following technical solutions: a multifunctional chalk cover, comprising a chalk cover shell, a sliding inner core, and a chalk wetting mechanism arranged on the chalk cover shell, the chalk The wetting mechanism includes a water storage bag, a cover set on the water storage bag, and a water outlet pipe connected to the water storage bag. When the cover is opened, water can be injected into the water storage bag. When the water storage bag is pressed, water will flow out of the outlet pipe. , moisten the chalk.

As a preferred solution, a limit chute is symmetrically arranged in the direction of extension of the chalk cover shell, and a slider corresponding to the limit chute is arranged symmetrically in the direction of extension of the sliding inner core, and the slider is slidably arranged on the limit slide. In the groove, the setting of the slide block and the chute can fix the sliding inner core to not rotate in the chalk case shell.

As a preferred solution, the end of the sliding inner core is provided with a font-shaped shrapnel, one end of the shrapnel is provided with a block, the other end of the shrapnel is a fixed end, and the fixed end is fixedly arranged on the end of the inner core, and the block is tightly fixed. Paste on the inner wall of the casing.

As a preferred solution, several clamping holes are provided in the extension direction of the chalk cover shell, and when the inner core slides, the clamping blocks pop out from the clamping holes to form a fixation.

As a preferred solution, the chalk cover shell is provided with a clip that fits the shell. The shell of the side chalk cover is provided with a fixing block, which can fix the chalk cover to prevent the chalk cover from rolling when the clamping plate is opened, and the buckle mechanism is used to fix the clamping plate when the clamping plate is close to the chalk cover shell.

As a preferred solution, the buckle mechanism includes a clamping tube, a spring arranged in the clamping tube, one end of the spring is fixed at the end of the clamping tube, and a sliding column is arranged on the other end of the spring, when the clamping plate is closed, the sliding column pushes the spring into the clamping tube Sliding, when the clamping plate is successfully closed, the sliding column pops out to form a fixation.

As a preferred solution, the end of the inner core is provided with a back plug, which can ensure that the chalk is fixed in the sliding inner core.

As a preferred solution, an anti-skid layer is provided on the upper end of the chalk case shell, and the anti-skid layer can prevent the chalk case from falling due to the frictional force when the chalk case is picked up by the big finger.

Therefore, the present invention has the advantages of moistening the chalk head, thereby avoiding the noise when it rubs against the blackboard, and the writing process will not produce flying chalk dust, the chalk utilization rate is high, the chalk can be better fixed, and the operation is simple and practical It is strong, and the use of the card board can prevent the chalk cover from rolling and falling.

Description of drawings

Accompanying drawing 1 is the main view structural representation of multifunctional chalk cover among the present invention;

Accompanying drawing 2 is a kind of top view structural representation of multifunctional chalk cover among the present invention;

Accompanying drawing 3 is a kind of side structural representation of multifunctional chalk cover among the present invention;

Accompanying drawing 4 is the front view sectional structure schematic diagram of buckle mechanism in the present invention;

Accompanying drawing 5 is the schematic diagram of the front view of the clamping hole in the present invention;

Accompanying drawing 6 is the front view structure schematic diagram of inner core among the present invention;

1. Outlet pipe 2. Cover 3. Water storage bag 4. Chalk case

5. Limit chute 6. Slider 7. Sliding inner core 8. Buckle mechanism

9. Clamping plate 10. Fixed block 11. Rear plug 12. Sliding column

13. Card tube 14. Spring 15. Card hole 16. Flat shrapnel

17. Block 18. Fixed end 19. Chalk wetting mechanism 20 Anti-slip layer.

Detailed ways

A kind of multifunctional chalk case of this embodiment, comprises chalk case shell, sliding inner core, also comprises the chalk wetting mechanism that is arranged on the chalk case shell, and chalk wetting mechanism comprises water storage bag, is arranged on the cover on the water storage bag , the water outlet pipe connected with the water storage bag, when the cover is opened, water can be filled into the water storage bag, when the water storage bag is pressed, the water outlet pipe will flow out to moisten the chalk.

A limit chute is arranged symmetrically in the extension direction of the chalk case shell, and a slider corresponding to the limit chute is arranged symmetrically in the outer extension direction of the sliding inner core, and the slider is slidably arranged in the limit chute. The setting can fix the sliding inner core and can not rotate in the chalk cover shell.

The end of the sliding inner core is provided with a font-shaped shrapnel, one end of the shrapnel is provided with a block, the other end of the shrapnel is a fixed end, the fixed end is fixed on the end of the inner core, and the block is close to the inner wall of the shell.

There are several clamping holes arranged in the direction of extension of the shell of the chalk case. When the inner core slides, the clamping blocks pop out from the clamping holes to form a fixation.

The shell of the chalk cover is provided with a clamping plate which fits the shell. The clamping plate is hinged on the shell. When the board is opened, the chalk cover can be fixed to prevent the chalk cover from rolling, and the buckle mechanism is used to fix the clamping plate when the clamping plate is close to the shell of the chalk cover.

The buckle mechanism includes a card tube and a spring arranged in the card tube. One end of the spring is fixed at the end of the card tube, and the other end of the spring is provided with a sliding post. When the card is closed, the sliding post pushes the spring to slide in the card tube. When closed, the sliding column pops out to form a fixed position.

The end of the inner core is provided with a back plug, which can ensure that the chalk is fixed in the sliding inner core.

The upper end of the chalk case shell is provided with an anti-skid layer 20, and the anti-skid layer can prevent the chalk case from falling due to the friction force when the big finger takes the chalk case.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which the present invention belongs can make various modifications or supplements to the described specific embodiments or adopt similar methods to replace them, but they will not deviate from the spirit of the present invention or go beyond the definition of the appended claims range.

Although terms such as back plug, switch, water storage bag, clamping hole and clamping block are frequently used in this paper, the possibility of using other terms is not excluded. These terms are used only for the purpose of describing and explaining the essence of the present invention more conveniently; interpreting them as any kind of additional limitation is against the spirit of the present invention.

Claims (8)

1. a kind of multi-function chalk casing, including chalk sleeve shell（4）, slide inner core（7）, further include and be arranged on chalk sleeve shell Chalk wetting mechanism（19）, the chalk, which soaks mechanism, includes water reservoir（3）, the lid that is arranged on water reservoir（2）, with storage The outlet pipe that water pocket is connected（1）.

2. a kind of multi-function chalk casing according to claim 1, it is characterized in that elongatedness direction is symmetrical in chalk sleeve shell It is provided with limit sliding chutes（5）, the slip inner core perimetric length direction is symmetrically arranged with and the corresponding sliding block of limit sliding chutes （6）, sliding block is slidably arranged in limit sliding chutes.

3. a kind of multi-function chalk casing according to claim 1, it is characterized in that the slip inner core end is provided with a word Type shrapnel（16）, fixture block is provided on described shrapnel one end（17）, the shrapnel other end is fixing end（18）, fixing end fixes It is arranged on inner core end.

4. a kind of multi-function chalk casing according to claim 3, it is characterized in that chalk sleeve shell elongatedness direction is provided with Several card holes（15）, when inner core slides, fixture block pops up formation out of card hole and fixes.

5. a kind of multi-function chalk casing according to claim 1, it is characterized in that be provided on the chalk sleeve shell with outside The snap-gauge of shell fitting（9）, the snap-gauge is hinged on the shell, and snap device is provided on chalk sleeve shell on the right side of snap-gauge（8）, institute It states and is provided with fixed block on chalk sleeve shell on the left of snap-gauge（10）.

6. a kind of multi-function chalk casing according to claim 5 is managed it is characterized in that the snap device includes card（13）If Put the spring in card pipe（14）, spring one end is fixed at card pipe end, traveller is provided on the spring other end（12）.

7. a kind of multi-function chalk casing according to claim 1-6, it is characterized in that being blocked up after being provided on the inner core end （11）.

8. a kind of multi-function chalk casing according to claim 1-6, it is characterized in that the chalk sleeve shell upper end is provided with Skid resistant course（20）.